Global Patent Index - EP 0934114 A4

EP 0934114 A4 2000-04-26 - PROMOTED SILVER CATALYST

Title (en)

PROMOTED SILVER CATALYST

Title (de)

AKTIVIERTER SILBER KATALYSATOR

Title (fr)

CATALYSEUR A L'ARGENT COMPORTANT UN PROMOTEUR

Publication

EP 0934114 A4 (EN)

Application

EP 97911814 A

Priority

  • US 9718926 W
  • US 73804296 A

Abstract (en)

[origin: US5703001A] A rhenium free supported silver catalyst for ethylene oxidation to ethylene oxide is provided containing an alkali metal promoter component and a Group 4b component in which the Group 4b component is added as a compound where the Group 4b compound is the cation.

IPC 1-7 (main, further and additional classification)

B01J 23/50; B01J 23/04; B01J 23/66; B01J 27/02; C07D 301/10

IPC 8 full level (invention and additional information)

B01J 23/50 (2006.01); B01J 23/66 (2006.01); B01J 27/02 (2006.01); B01J 27/12 (2006.01); C07D 301/10 (2006.01)

CPC (invention and additional information)

C07D 301/10 (2013.01); B01J 23/66 (2013.01)

Citation (search report)

  • [X] DATABASE WPI Section Ch Week 199305, Derwent World Patents Index; Class E13, AN 1993-039293, XP002132138
  • See also references of WO 9818552A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family

US 5703001 A 19971230; AT 305818 T 20051015; AU 4910297 A 19980522; AU 715794 B2 20000210; BR 9711433 A 19990824; CA 2262621 A1 19980507; CA 2262621 C 20060711; CN 1102436 C 20030305; CN 1226187 A 19990818; DE 69734320 D1 20060216; DE 69734320 T2 20060713; EP 0934114 A1 19990811; EP 0934114 A4 20000426; EP 0934114 B1 20051005; EP 0934114 B8 20051207; ES 2251019 T3 20060416; JP 2001502968 A 20010306; JP 4327252 B2 20090909; KR 100451808 B1 20041008; KR 20000029638 A 20000525; WO 9818552 A1 19980507